Wound rotor motor start-up

Powerful fans, pumps, mills, and crushers are driven by wound-rotor induction motors. Such motors' design current, with no accelerating resistor, can be seven times its starting current. It can be harmful to both supply mains and the motor's service life. Starter rheostats help provide a gradual increase in starting current and motor shaft torque. In cooperation with the German GINO AG Elektrotechnische Fabrik (GINO), OOO Penza Plant Telema Gino designs and produces starter rheostats with two-step and oil cooling. The rheostats have low maintenance cost and are highly reliable in heavy-duty conditions. The article covers the features and benefits of those devices, including their design and technical specifics.

Author: D.A. Akimov

Section: Equipment and technology

Keywords: induction motor, wound-rotor motor, motor starter